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Levart [38]
4 years ago
14

What two numbers multiply to get 25 and add to -10

Mathematics
1 answer:
SOVA2 [1]4 years ago
7 0
x;\ y-the\ numbers\\\\  \left\{\begin{array}{ccc}xy=25\\x+y=-10&\to x=-10-y\end{array}\right\\\\subtitute:\\(-10-y)y=25\\(-10)(y)-y(y)=25\\-10y-y^2=25\\-y^2-10y-25=0\ \ \ \ |change\ the\ signs\\y^2+10y+25=0\\y^2+5y+5y+25=0\\y(y+5)+5(y+5)=0\\(y+5)(y+5)=0\\(y+5)^2=0\iff y+5=0\to \boxed{y=-5}\\\\subtitute\ the\ value\ of\ y\ to\ the\ equation\ x=-10-y\\x=-10-(-5)\\x=-10+5\\\boxed{x=-5}\\\\Answer:\boxed{-5\ and\ -5}
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15<br> 14<br> 18<br> 24<br> 10<br> 55<br> 14<br> 19<br> Find the mean, median and mode
Charra [1.4K]

Answer:

Mean: 21.125

Median: 16.5

Mode: 14

Step-by-step explanation:

First sourt your numbers from smallest to biggest - very important!

Mean= (all numbers total/amount of numbers)=169/8=21.125

Median= The middle two numbers added and divided by two = 15+18/(2)=16.5

Mode=number that appears most often: 14 appears twice!

5 0
4 years ago
Two less than nine times a number is -4. You have to write this in number form.
jeka94

Answer:

9x - 2 = -4

Step-by-step explanation:

5 0
4 years ago
I’m a little lost on this
jeyben [28]
Do you have any options?
4 0
3 years ago
Please help!! I will give brainilest. look at the picture!
xxMikexx [17]

Answer:

Rows 126

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Step-by-step explanation:

4 0
3 years ago
Michelle Smith bought 30 shares of James Company stock at $34 per share. The company paid annual dividends of $0.42 per share. W
grandymaker [24]

Answer:

The right option is B) 12.60

Step-by-step explanation:

We have given,

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Hence the right option is B) 12.60


5 0
3 years ago
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